Modern Magic Breaks into Another World

Lao Bai, who is about to retire, is thinking about taking a trip after retirement, but he doesn't want fate to play tricks on others. By some strange combination of circumstances, he ends up in the alien world mentioned by his youngest son! Looking at the unknown and magical world in front of him, how will Lao Bai, a middle school teacher who is about to retire, start a new era in his life?